{{ define "admin/signin/signin-head"}}
    <title>signin</title>
{{ end }}
<div>
    <form action="{{ urlpath "admin.login"}}" method="post">
        <p><lavel>username:</lavel>
            <input type="text" name="username"></p>
        {{ .csrfField }}
        <input type="submit" value="提交">
    </form>
</div>